Johannes hendrikus de goede and simon nannes groot



No. 753,545. PATENTED FEB. 15, 1904, J. H. DE GOEDE & s. N. GROOT.

STEAM TURBINE.

APPLICATION FILED JULY 7, 1903.

N0 MODEL.

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UNITED STATES Patented February 16, 1904.

l a f PATE T ()FFICE.

J OHANNES HENDRIKUS DE GOEDE AND SIMON NANNES GROOT, OF ENKHUIZEN,NETHERLANDS.

STEAM-TURBINE.

SPECIFICATION forming part of Letters Patent No. 7 52,545, dated.February 16, 1904.

Application filed July 7, 1903. Serial No. 164,583- (No model.)

To all whom it may concern:

Be it known that we, J OHANNES HENDRIKUS DE GOEDE, engineer, residing at295 Paktuinen, and SIMON NANNES GRooT, merchant, residing at 12Westeinde, (near the Warehouses,) Enkhuizen, Netherlands, subjects ofthe Queen of the Netherlands, have invented certain new and usefulImprovements in Steam-Turbines, of which the following is aspecification.

This invention relates to improvements in steam-turbines, and by samenumerous advantages oventhe steam-turbines already known are secured.

To set against the well-known advantages of the steam-turbine ascompared with the piston-engine, more particularly as regards the smallspace occupied, the simplified attendance, and the lower cost ofworking, there are various defects, such as high consumption of steam,high speed, (which entails the necessity for intermediate or reductiongear,) the fact that the direction of movement is invariable, thecomplicated mechanism, and resulting increased expense for repairs.

According to the present invention the advantages of this class ofengine without the resulting defects of same are secured.

In the accompanying drawings, Figure 1 is is a vertical longitudinalsection through the motor-casing and the turbine-disks with a partialview of the vanes. Fig. 2 is a side view of the turbine from the right,the casing being removed; and Fig. 3 shows the form of the vanes on anenlarged scale.

The turbine is coupled direct to the shaft to be driven, apart fromwhich all the moving parts are duplicated, one set being for running theengine in one direction (left-handed rotation) and the other forreversing, (righthanded rotation.) The feed-valve is of a threeway type,the turning of which immediately 1determines/the direction of rotationof the tur- The disks Z2 and c are keyed onto the driving-shaft a andinclosed in the casing 03. The shaft on passes through the stufling-boxe and is also supported at f. The vanes g are mounted on one side of thedisk Z2 and on the opposite side of the disk 0, and the respectivesteamnozzles h and i are arranged to correspond therewith.

The cylindrical strips (1 and 7" close the vanes g on the extreme innerand outer sides.

The steam-pipejterminates in the three-way valve In, from which thepipes Z and 0% lead to the steam-nozzles h and a, while the exhaustpasses out through pipe n to discharge either to the outer air or to acondenser or otherwise, as desired. The steam-chest cl is fitted with adelivery-valve 0, and flanges p are cast on the casing to facilitatebedding the engine on a foundation. The positions of the threeway valvefor forward steaming or reversing are marked on a sector 8.

The turbine is very simply worked. All that is necessary is to set thevalve 7c in the proper position, and the engine runs ahead or reverses,as desired. The steam enters through the pipe Z or m to the nozzle ]L ori, reaches the disk I) or c, and sets the samein motion, which motion istransmitted direct to the driving-shaft a. The exhaust-steam is led awayby the pipe n into the open air or to the condenser. On reversing theposition of the valve 70 the turbine gradually slows down and thenbegins to run in the opposite direction. The two disks 7) and 0 togetherform a set, and several of these sets may be mounted on the same shaft,the steam being either admitted to the whole of the disks at the sametime or passed from one to the other in succession by expansion. Thesingle steam-nozzle can also be replaced by two or more acting upon thesame disk and increasing its capacity.

Among the advantages arising from the use of this invention are:simplicity of construction, durability, ease in effecting repairs,capability of driving in either direction, economy in the consumption ofsteam, while the low speed at which it can be driven'enablcs the drivenshaft to be coupled direct to the turbine without any expensiveintermediate gearing.

What we claim is 1. In a steam-turbine, the combination with a casing,of a shaft journaled therein, a plurality of disks fixed on the shaft,an annular series of cup-shaped vanes fixed on one side of 5 encirclingthe vanes on their inner and outer each disk, annular flanges fixed tothe disks and encircling the vanes on their inner and outer sides, thevanes on one disk being ar a casing, of a shaft journaled therein, aplu-- rality of disks fixed on the shaft, an annular series oflaterally-projecting cup-shaped vanes fixed on one side of each disk thevanes of one disk being set on the side of the disk opposed to that onWhich the vanes of the adjacent disk are set, annular flanges fixed tothe disks and sides, and means for directing a jet of steam againsteither set of vanes at will, substantially as described.

3. In a steam-turbine, the combination With a casing, of a shaftjournaled therein, a plurality of disks fixed on the shaft, an annularseries of laterally-projecting cup-shaped vanes fixed on one side ofeach disk, the vanes of one disk being set on the side of the diskopposed to that on Which the vanes of the adjacent disk are set, annularflanges fixed to the disk and encircling the vanes on their inner andouter side, nozzles one for each disk arranged at an gles to the opensides of the vanes, and means for supplying steam to either of saidnozzles at Will, substantially asdescribed.

4; In a steam-turbine, the combination with a casing, of a shaftjournaled therein, a plurality of disks fixed on the shaft, an annularseries of laterally-projecting cup-shaped vanes fixed on one side ofeach disk, the vanes of one disk being set on the side of the diskopposed to that on Which the vanes of the adjacent disk are set, annularflanges fixed to the disk and encircling the vanes on their inner andouter side, nozzles, one for each .disk arranged at angles to the opensides of the vanes, steamdelivery pipes for supplying steam to saidnozzles and a three-Way valve for controlling the admission of steam tosaid nozzles, substantially as described.

In testimony whereof We have hereunto set our hands in the presence oftWo subscribing Witnesses.

JOHANNES HENDRIKUS DE GOEDE. SIMON NANNES GROOT.

Witnesses:

THOMAS HERMANN VERHAVE, AUGUST SIEGFRIED DocENh

